What the hell is this a answer
Answer:
b.It increases the likelihood that daughter cells contain different genetic material.
Explanation:
Morgan and Cattell for the first time used the term ‘crossing over’. Crossing over takes place during prophase I of meiosis. During crossing over, chromosome segments of non-sister chromatids of homologous chromosomes get exchanged. As a result, the daughter cells acquire different genetic materials. Thus, it provides genetic variation by creating a new combination of genes or get recombination and produces hybrids.
A community of plants and animals that live and interact together in a particular region is called an ecosystem.
Answer:
astronomical unit (AU) and light years
Explanation:
B. Cladistics, because the other two choices don't make any sense.